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Finding the Fourth Proportional to 53,815,057.20, 80,722,585.80 and 50,980,705.20

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Solution

The fourth proportional to 53,815,057.20, 80,722,585.80 and 50,980,705.20 is: 76,471,057.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,815,057.20 : 80,722,585.80 = 50,980,705.20 : x
  2. Step 2: Convert to fraction form
    53,815,057.20/80,722,585.80 = 50,980,705.20/x
  3. Step 3: Cross multiply
    53,815,057.20x = 80,722,585.80 × 50,980,705.20
  4. Step 4: Simplify right side
    53,815,057.20x = 4,115,294,349,651,506
  5. Step 5: Solve for x
    x = 4,115,294,349,651,506/53,815,057.20
  6. Step 6: Final answer
    x = 76,471,057.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.